EP1197874A4 - Signal processor and product-sum operating device for use therein with rounding function - Google Patents

Signal processor and product-sum operating device for use therein with rounding function

Info

Publication number: EP1197874A4
Authority: EP; European Patent Office
Prior art keywords: product; signal processor; operating device; rounding function; sum operating
Prior art date: 1999-02-03
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP00902067A

Other languages

German (de)

French (fr)

Other versions

EP1197874A1 (en

EP1197874B1 (en

Inventor

Takahiro Kumura

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

NEC Corp

Original Assignee

NEC Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1999-02-03

Filing date

2000-02-03

Publication date

2005-02-09

2000-02-03 Application filed by NEC Corp filed Critical NEC Corp

2002-04-17 Publication of EP1197874A1 publication Critical patent/EP1197874A1/en

2005-02-09 Publication of EP1197874A4 publication Critical patent/EP1197874A4/en

2007-08-15 Application granted granted Critical

2007-08-15 Publication of EP1197874B1 publication Critical patent/EP1197874B1/en

2020-02-03 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Classifications

- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Theoretical Computer Science (AREA)
Mathematical Physics (AREA)
Data Mining & Analysis (AREA)
General Physics & Mathematics (AREA)
Mathematical Analysis (AREA)
Mathematical Optimization (AREA)
Computational Mathematics (AREA)
Pure & Applied Mathematics (AREA)
Databases & Information Systems (AREA)
Software Systems (AREA)
General Engineering & Computer Science (AREA)
Algebra (AREA)
Complex Calculations (AREA)

EP00902067A 1999-02-03 2000-02-03 Signal processor and product-sum operating device for use therein with rounding function Expired - Lifetime EP1197874B1 (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
JP02567499A JP3336986B2 (en)	1999-02-03	1999-02-03	Signal processor and multiply-accumulate unit with rounding function used therefor
JP2567499		1999-02-03
PCT/JP2000/000584 WO2000046692A1 (en)	1999-02-03	2000-02-03	Signal processor and product-sum operating device for use therein with rounding function

Publications (3)

Publication Number	Publication Date
EP1197874A1 EP1197874A1 (en)	2002-04-17
EP1197874A4 true EP1197874A4 (en)	2005-02-09
EP1197874B1 EP1197874B1 (en)	2007-08-15

Family

ID=12172340

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP00902067A Expired - Lifetime EP1197874B1 (en)	1999-02-03	2000-02-03	Signal processor and product-sum operating device for use therein with rounding function

Country Status (6)

Country	Link
US (1)	US6792442B1 (en)
EP (1)	EP1197874B1 (en)
JP (1)	JP3336986B2 (en)
CA (1)	CA2361451A1 (en)
DE (1)	DE60035999T2 (en)
WO (1)	WO2000046692A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP3984790B2 (en) *	2001-01-15	2007-10-03	日本電気株式会社	Viterbi decoding processor
JP2006215611A (en) *	2005-02-01	2006-08-17	Sony Corp	Arithmetic unit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1997008608A1 (en) *	1995-08-31	1997-03-06	Intel Corporation	A set of instructions for operating on packed data
WO1998012624A1 (en) *	1996-09-23	1998-03-26	Arm Limited	Data processing apparatus registers

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS59197936A (en) *	1983-04-25	1984-11-09	Fujitsu Ltd	Digital signal processing system
US4876660A (en) *	1987-03-20	1989-10-24	Bipolar Integrated Technology, Inc.	Fixed-point multiplier-accumulator architecture
US5363322A (en) *	1991-04-02	1994-11-08	Motorola, Inc.	Data processor with an integer multiplication function on a fractional multiplier
JP3166781B2 (en) *	1991-07-12	2001-05-14	新日本製鐵株式会社	Adder circuit
FR2693287B1 (en)	1992-07-03	1994-09-09	Sgs Thomson Microelectronics Sa	Method for carrying out numerical calculations, and arithmetic unit for implementing this method.
JPH08137669A (en)	1994-11-04	1996-05-31	Fujitsu Ltd	Arithmetic circuit
US5862067A (en) *	1995-12-29	1999-01-19	Intel Corporation	Method and apparatus for providing high numerical accuracy with packed multiply-add or multiply-subtract operations
JPH09274612A (en) *	1996-04-05	1997-10-21	Hitachi Ltd	Vector processing equipment
JP3767085B2 (en)	1996-09-04	2006-04-19	セイコーエプソン株式会社	Information processing circuit and microcomputer

1999
- 1999-02-03 JP JP02567499A patent/JP3336986B2/en not_active Expired - Fee Related
2000
- 2000-02-03 EP EP00902067A patent/EP1197874B1/en not_active Expired - Lifetime
- 2000-02-03 US US09/890,749 patent/US6792442B1/en not_active Expired - Fee Related
- 2000-02-03 CA CA002361451A patent/CA2361451A1/en not_active Abandoned
- 2000-02-03 WO PCT/JP2000/000584 patent/WO2000046692A1/en active IP Right Grant
- 2000-02-03 DE DE60035999T patent/DE60035999T2/en not_active Expired - Lifetime

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1997008608A1 (en) *	1995-08-31	1997-03-06	Intel Corporation	A set of instructions for operating on packed data
WO1998012624A1 (en) *	1996-09-23	1998-03-26	Arm Limited	Data processing apparatus registers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0046692A1 *

Also Published As

Publication number	Publication date
WO2000046692A1 (en)	2000-08-10
JP3336986B2 (en)	2002-10-21
EP1197874A1 (en)	2002-04-17
JP2000222174A (en)	2000-08-11
US6792442B1 (en)	2004-09-14
DE60035999T2 (en)	2007-12-20
EP1197874B1 (en)	2007-08-15
DE60035999D1 (en)	2007-09-27
CA2361451A1 (en)	2000-08-10

Publication	Publication Date	Title
GB2353653B (en)	2003-12-31	Signal processor
GB0112842D0 (en)	2001-07-18	Computer system and peripheral devices therefore
GB2353655B (en)	2003-07-23	Signal processor
GB9927702D0 (en)	2000-01-19	Computer and peripheral switch with usb
HK1041118B (en)	2005-11-25	Battery monitor and battery device
TW438201U (en)	2001-05-28	Computer case body
AU4161899A (en)	1999-12-20	Radiotherapeutical device and use thereof
IL135441A0 (en)	2001-05-20	Signal processor with local signal behavior
EP1281353A4 (en)	2006-04-26	Pulsometer and measuring system comprising the same
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GB9908809D0 (en)	1999-06-09	Signal processor
EP1164365A4 (en)	2002-04-17	Combination weighing and counting device
AU2768001A (en)	2001-07-24	Attitude indicator and activity monitoring device
EP1197874A4 (en)	2005-02-09	Signal processor and product-sum operating device for use therein with rounding function
GB9705722D0 (en)	1997-05-07	Signal processor
GB9918839D0 (en)	1999-10-13	Sensor devices and analytical methods for their use
GB9908811D0 (en)	1999-06-09	Signal processor
GB2354139B (en)	2004-01-28	Signal processor
GB9908812D0 (en)	1999-06-09	Signal processor
EG22762A (en)	2003-07-30	Receptacle and receptacle device
GB2355526B (en)	2003-11-19	Indicating device
AU4599299A (en)	2001-01-22	Sound-light indicating process and device
GB2353652B (en)	2003-07-23	Signal processor
EP1222365A4 (en)	2004-05-26	A variable volume device and system therefor
IL118875A0 (en)	1996-10-31	Data processor input device

Legal Events

Date	Code	Title	Description
2002-03-02	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2002-04-17	17P	Request for examination filed	Effective date: 20010810
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2004-05-26	RBV	Designated contracting states (corrected)	Designated state(s): DE FR GB IT NL
2005-02-09	A4	Supplementary search report drawn up and despatched	Effective date: 20041229
2007-01-11	GRAP	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOSNIGR1
2007-06-05	GRAS	Grant fee paid	Free format text: ORIGINAL CODE: EPIDOSNIGR3
2007-07-13	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
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